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|
#!/bin/bash
fatal() {
if [ -n "${2}" ]; then
echo -e "Error: ${2}"
fi
exit ${1}
}
usage() {
cat << EOF
Usage: $0 <options>
Request server configuration from Ansible Tower.
OPTIONS:
-h Show this message
-s Tower server (e.g. https://tower.example.com) (required)
-k Allow insecure SSL connections and transfers
-c Host config key (required)
-t Job template ID (required)
-e Extra variables
EOF
}
# Initialize variables
INSECURE=""
# Parse arguments
while getopts “hks:c:t:s:e:” OPTION
do
case ${OPTION} in
h)
usage
exit 1
;;
s)
TOWER_SERVER=${OPTARG}
;;
k)
INSECURE="-k"
;;
c)
HOST_CFG_KEY=${OPTARG}
;;
t)
TEMPLATE_ID=${OPTARG}
;;
e)
EXTRA_VARS=${OPTARG}
;;
?)
usage
exit
;;
esac
done
# Validate required arguments
test -z ${TOWER_SERVER} && fatal 1 "Missing required -s argument"
# Make sure TOWER_SERVER starts with http:// or https://
[[ "${TOWER_SERVER}" =~ ^https?:// ]] || fatal 1 "Tower server must begin with http:// or https://"
test -z ${HOST_CFG_KEY} && fatal 1 "Missing required -c argument"
test -z ${TEMPLATE_ID} && fatal 1 "Missing required -t argument"
# Generate curl --data parameter
if [ -n "${EXTRA_VARS}" ]; then
CURL_DATA="{\"host_config_key\": \"${HOST_CFG_KEY}\", \"extra_vars\": \"${EXTRA_VARS}\"}"
else
CURL_DATA="{\"host_config_key\": \"${HOST_CFG_KEY}\"}"
fi
# Success on any 2xx status received, failure on only 404 status received, retry any other status every min for up to 10 min
RETRY_ATTEMPTS=10
ATTEMPT=0
while [[ $ATTEMPT -lt $RETRY_ATTEMPTS ]]
do
set -o pipefail
HTTP_STATUS=$(curl ${INSECURE} -s -i -X POST -H 'Content-Type:application/json' --data "$CURL_DATA" ${TOWER_SERVER}/api/v2/job_templates/${TEMPLATE_ID}/callback/ 2>&1 | head -n1 | awk '{print $2}')
CURL_RC=$?
if [ ${CURL_RC} -ne 0 ]; then
fatal ${CURL_RC} "curl exited with ${CURL_RC}, halting."
fi
# Extract http status code
if [[ ${HTTP_STATUS} =~ ^2[0-9]+$ ]]; then
echo "Success: ${HTTP_STATUS} received."
break
elif [[ ${HTTP_STATUS} =~ ^404$ ]]; then
fatal 1 "Failed: ${HTTP_STATUS} received, encountered problem, halting."
else
ATTEMPT=$((ATTEMPT + 1))
echo "Failed: ${HTTP_STATUS} received, executing retry #${ATTEMPT} in 1 minute."
sleep 60
fi
done
|
